题目描述
blablabla
#include<bits/stdc++.h>
using namespace std;
bool a[10]={0};
int main(){
string s;
int i;
bool f=1;
while(cin>>s){
i=0;
while(i!=s.length()){
if(s[i] == 'E'){
a[1] = 1;
}
if(a[1]&&s[i] == 'A'){
a[2]=1;
}
if(a[2]&&s[i] == 'S'){
a[3]=1;
}
if(a[3]&&s[i] == 'Y'){
a[4]=1;
}
i++;
}
for(int j=1;j<=4;j++){
if(a[j] == 0){
f=0;
break;
}
a[j]=0;
}
if(f){
cout<<"easy"<<endl;
}else{
cout<<"difficult"<<endl;
}
f=1;
}
return 0;
}